1 /* 2 * arch/arm/include/asm/mach/arch.h 3 * 4 * Copyright (C) 2000 Russell King 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 11 #ifndef __ASSEMBLY__ 12 13 struct tag; 14 struct meminfo; 15 struct sys_timer; 16 17 struct machine_desc { 18 unsigned int nr; /* architecture number */ 19 const char *name; /* architecture name */ 20 unsigned long boot_params; /* tagged list */ 21 22 unsigned int nr_irqs; /* number of IRQs */ 23 24 unsigned int video_start; /* start of video RAM */ 25 unsigned int video_end; /* end of video RAM */ 26 27 unsigned int reserve_lp0 :1; /* never has lp0 */ 28 unsigned int reserve_lp1 :1; /* never has lp1 */ 29 unsigned int reserve_lp2 :1; /* never has lp2 */ 30 unsigned int soft_reboot :1; /* soft reboot */ 31 void (*fixup)(struct machine_desc *, 32 struct tag *, char **, 33 struct meminfo *); 34 void (*reserve)(void);/* reserve mem blocks */ 35 void (*map_io)(void);/* IO mapping function */ 36 void (*init_early)(void); 37 void (*init_irq)(void); 38 struct sys_timer *timer; /* system tick timer */ 39 void (*init_machine)(void); 40 #ifdef CONFIG_MULTI_IRQ_HANDLER 41 void (*handle_irq)(struct pt_regs *); 42 #endif 43 }; 44 45 /* 46 * Current machine - only accessible during boot. 47 */ 48 extern struct machine_desc *machine_desc; 49 50 /* 51 * Set of macros to define architecture features. This is built into 52 * a table by the linker. 53 */ 54 #define MACHINE_START(_type,_name) \ 55 static const struct machine_desc __mach_desc_##_type \ 56 __used \ 57 __attribute__((__section__(".arch.info.init"))) = { \ 58 .nr = MACH_TYPE_##_type, \ 59 .name = _name, 60 61 #define MACHINE_END \ 62 }; 63 64 #endif 65